public class Test1 {

    public static void main(String[] args) {
      // School school = new School();
       Student[] students = new Student[3];
       students[0] = new Student();
       System.out.println(students[0].a);
    }
}
class Student {
    public int a = 10;
}
class Teacher {

}

class School{
     Teacher[] teachers = new Teacher[3];
     Student[] students = new Student[3];


}